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How to extract oil? #4884379
10/01/18 08:39 AM
10/01/18 08:39 AM
Joined: Jan 2014
Posts: 460
Australia
Spetz Offline OP
Spetz  Offline OP
Joined: Jan 2014
Posts: 460
Australia
Hi everyone,

I ordered a UOA kit that has a tube and a syringe to get the oil from the dipstick,

My questions are:
1. Does the oil need to be hot, engine running, engine just switched off, or cold is fine?
2. If the tube does not go down the dipstick what is another way I can get to the oil without draining it?
Can I remove the oil filter and extract some oil from there?
Or can I remove the oil cap and try to get some from the head?
3. The kit came with a 30cc syringe and a 100ml or so canister. Is 30cc enough for the lab or must I fill the canister?


2003 Mitsubishi Diamante 6G74 3.5L. 5 Speed auto. 155,000 miles. Shell Helix Ultra 5W40 at 6k OCI
Re: How to extract oil? [Re: Spetz] #4884383
10/01/18 08:48 AM
10/01/18 08:48 AM
Joined: Oct 2009
Posts: 3,518
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,518
Wet side WA
I would say it would be best to have just turned to engine off so things haven't settled out and are suspended in the oil.


2004 Corolla 126813
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
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In: T6 5W-40 XG9100 73705 4-22-18
Re: How to extract oil? [Re: Spetz] #4884390
10/01/18 08:59 AM
10/01/18 08:59 AM
Joined: Apr 2010
Posts: 2,363
Atlanta,GA
BMWTurboDzl Offline
BMWTurboDzl  Offline
Joined: Apr 2010
Posts: 2,363
Atlanta,GA
Engine warm not hot nor cold. Maybe sample an 30 mins or so after you've driven it. The idea is that any solids will remain uniformly distributed in the oil and not have settled at the bottom of the pan.


You could reach out to Blackstone Labs. They may have suggestions on how to sample.


'15 435i - BMW branded Shell 0w30.
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Re: How to extract oil? [Re: Spetz] #4884432
10/01/18 10:08 AM
10/01/18 10:08 AM
Joined: Aug 2008
Posts: 21,310
ON, Canada eh?
StevieC Offline
StevieC  Offline
Joined: Aug 2008
Posts: 21,310
ON, Canada eh?
When I do sampling and not complete changes at the time of a UOA collection, I like to make sure the vehicle has been run somewhere like shopping etc. I return home, let the vehicle cool a little and then I send the tube on my collection pump down the dipstick tube. I have found that lubricating the outside of the tube with clean engine oil makes it go down the tube much easier. I always dump the first bit of extracted oil back into the engine via the oil cap in case there was residuals in the tube/pump from the last extraction. Then on the second extraction I pump this into my bottle to be sent to the lab.


'18 Dodge Grand Caravan GT - AMSOIL SS 5w20
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF
Re: How to extract oil? [Re: Spetz] #4884445
10/01/18 10:22 AM
10/01/18 10:22 AM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
Sounds like the plan! /\ /\ /\

Last edited by ARCOgraphite; 10/01/18 10:22 AM.

2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: How to extract oil? [Re: Spetz] #4884704
10/01/18 03:33 PM
10/01/18 03:33 PM
Joined: Oct 2010
Posts: 1,829
.
Danh Offline
Danh  Offline
Joined: Oct 2010
Posts: 1,829
.
Just one more small suggestion: Mark the extraction tubing at a point where it equals the length of the dipstick. This will ensure you extract oil from a good midpoint and don’t reach the bottom of the sump where crud could have settled and accumulated.

Re: How to extract oil? [Re: Spetz] #4884847
10/01/18 05:57 PM
10/01/18 05:57 PM
Joined: Oct 2014
Posts: 590
On the road Midwest
Ihatetochangeoil Offline
Ihatetochangeoil  Offline
Joined: Oct 2014
Posts: 590
On the road Midwest
1. Does the oil need to be hot, engine running, engine just switched off, or cold is fine?
Answer per Blackstone: https://www.blackstone-labs.com/gas-sampling.php Answer per me: I take my samples from a hot, running engine; but I have bypass filters with a sampling petcock; it's pretty easy and mess free. I wear leather TIG welding gloves in case of accidental contact with hot engine parts. To sample from my son's car, (no petcock), I remove the oil filler cap (with the hot motor idling) and carefully insert the sampling tube into a "puddle" of oil in a low area cast into the cylinder head; it may take several "draws" and a few minutes to get enough oil for the sample bottle.

2. If the tube does not go down the dipstick what is another way I can get to the oil without draining it? Answer per me: You can also loosen the oil filter a little and catch some oil, I've done this with a clean spare glass beaker and then poured it into the sampling bottle, but I would NOT attempt this on a running engine!!! I let the engine run long enough to reach equilibrium temperature; chock, jack and support the car, then shut the engine down and immediately get my sample. Job 1 is to be very cautious, be safe, don't get burned. A splash in the face with hot oil is not funny; I wear safety glasses, a full face polycarbonate grinding shield and a leather welding jacket. Never been burned and don't plan on it. Who does?

3. The kit came with a 30cc syringe and a 100ml or so canister. Is 30cc enough for the lab or must I fill the canister? Answer: Blackstone says they need 3 oz; which works out to about 90 ml. https://www.conversion-metric.org/volume/ounce-to-milliliter

Re: How to extract oil? [Re: Spetz] #4884880
10/01/18 06:29 PM
10/01/18 06:29 PM
Joined: Sep 2010
Posts: 7,496
Texas & Global
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 7,496
Texas & Global
For large industrial engines the sump is a no-no and samples are taken from the cooler loop (sample valve) …


2018 Chevy 1500 Z71 4WD
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Re: How to extract oil? [Re: Spetz] #4927464
11/18/18 07:49 AM
11/18/18 07:49 AM
Joined: Jul 2003
Posts: 3,108
San Antonio, TX
jorton Offline
jorton  Offline
Joined: Jul 2003
Posts: 3,108
San Antonio, TX
Do you think I can get a sample from the dipstick tube on a CVT? I think the tube makes a right angled turn at the attachment to the transmission.


"If everything seems under control, you're just not going fast enough."
- Mario Andretti



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